Import aap/librw @ masterHEADmaster

Snapshot for re3/reVC vendoring, per @lzcnt.
Source: https://github.com/aap/librw (master).

1 files changed, 766 insertions, 0 deletions

diff --git a/tools/playground/tl_tests.cpp b/tools/playground/tl_tests.cpp
new file mode 100644
index 0000000..7cfc59a
--- /dev/null
+++ b/tools/playground/tl_tests.cpp
@@ -0,0 +1,766 @@
+#include <rw.h>
+#include <skeleton.h>
+
+extern bool dosoftras;
+
+using namespace rw;
+using namespace RWDEVICE;
+
+void rastest_renderTriangles(RWDEVICE::Im2DVertex *scrverts, int32 verts, uint16 *indices, int32 numTris);
+
+//
+// This is a test to implement T&L in software and render with Im2D
+//
+
+namespace gen {
+
+#define MAX_LIGHTS 8
+
+struct Directional {
+	V3d at;
+	RGBAf color;
+};
+static Directional directionals[MAX_LIGHTS];
+static int32 numDirectionals;
+static RGBAf ambLight;
+
+static void
+enumLights(Matrix *lightmat)
+{
+	int32 n;
+	World *world;
+
+	world = (World*)engine->currentWorld;
+	ambLight.red = 0.0;
+	ambLight.green = 0.0;
+	ambLight.blue = 0.0;
+	ambLight.alpha = 0.0;
+	numDirectionals = 0;
+	// only unpositioned lights right now
+	FORLIST(lnk, world->globalLights){
+		Light *l = Light::fromWorld(lnk);
+		if(l->getType() == Light::DIRECTIONAL){
+			if(numDirectionals >= MAX_LIGHTS)
+				continue;
+			n = numDirectionals++;
+			V3d::transformVectors(&directionals[n].at, &l->getFrame()->getLTM()->at, 1, lightmat);
+			directionals[n].color = l->color;
+			directionals[n].color.alpha = 0.0f;
+		}else if(l->getType() == Light::AMBIENT){
+			ambLight.red   += l->color.red;
+			ambLight.green += l->color.green;
+			ambLight.blue  += l->color.blue;
+		}
+	}
+}
+
+struct ObjSpace3DVertex
+{
+	V3d objVertex;
+	V3d objNormal;
+	RGBA color;
+	TexCoords texCoords;
+};
+
+enum {
+	CLIPXLO = 0x01,
+	CLIPXHI = 0x02,
+	CLIPX   = 0x03,
+	CLIPYLO = 0x04,
+	CLIPYHI = 0x08,
+	CLIPY   = 0x0C,
+	CLIPZLO = 0x10,
+	CLIPZHI = 0x20,
+	CLIPZ   = 0x30,
+};
+
+struct CamSpace3DVertex
+{
+	V3d camVertex;
+	uint8 clipFlags;
+	RGBAf color;
+	TexCoords texCoords;
+};
+
+struct InstanceData
+{
+	uint16 *indices;
+	int32 numIndices;
+	ObjSpace3DVertex *vertices;
+	int32 numVertices;
+	// int vertStride;	// not really needed right now
+	Material *material;
+	Mesh *mesh;
+};
+
+struct InstanceDataHeader : public rw::InstanceDataHeader
+{
+	uint32 serialNumber;
+	ObjSpace3DVertex *vertices;
+	uint16 *indices;
+	InstanceData *inst;
+};
+
+static void
+instanceAtomic(Atomic *atomic)
+{
+	static V3d zeroNorm = { 0.0f, 0.0f, 0.0f };
+	static RGBA black = { 0, 0, 0, 255 };
+	static TexCoords zeroTex = { 0.0f, 0.0f };
+	int i;
+	uint j;
+	int x, x1, x2, x3;
+	Geometry *geo;
+	MeshHeader *header;
+	Mesh *mesh;
+	InstanceDataHeader *insthead;
+	InstanceData *inst;
+	uint32 firstVert;
+	uint16 *srcindices, *dstindices;
+
+	geo = atomic->geometry;
+	if(geo->instData)
+		return;
+	header = geo->meshHeader;
+	int numTris;
+	if(header->flags & MeshHeader::TRISTRIP)
+		numTris = header->totalIndices - 2*header->numMeshes;
+	else
+		numTris = header->totalIndices / 3;
+	int size;
+	size = sizeof(InstanceDataHeader) + header->numMeshes*sizeof(InstanceData) +
+		geo->numVertices*sizeof(ObjSpace3DVertex) + numTris*6*sizeof(uint16);
+	insthead = (InstanceDataHeader*)rwNew(size, ID_GEOMETRY);
+	geo->instData = insthead;
+	insthead->platform = 0;
+	insthead->serialNumber = header->serialNum;
+	inst = (InstanceData*)(insthead+1);
+	insthead->inst = inst;
+	insthead->vertices = (ObjSpace3DVertex*)(inst+header->numMeshes);
+	dstindices = (uint16*)(insthead->vertices+geo->numVertices);
+	insthead->indices = dstindices;
+
+	// TODO: morphing
+	MorphTarget *mt = geo->morphTargets;
+	for(i = 0; i < geo->numVertices; i++){
+		insthead->vertices[i].objVertex = mt->vertices[i];
+		if(geo->flags & Geometry::NORMALS)
+			insthead->vertices[i].objNormal = mt->normals[i];
+		else
+			insthead->vertices[i].objNormal = zeroNorm;
+		if(geo->flags & Geometry::PRELIT)
+			insthead->vertices[i].color = geo->colors[i];
+		else
+			insthead->vertices[i].color = black;
+		if(geo->numTexCoordSets > 0)
+			insthead->vertices[i].texCoords = geo->texCoords[0][i];
+		else
+			insthead->vertices[i].texCoords = zeroTex;
+	}
+
+	mesh = header->getMeshes();
+	for(i = 0; i < header->numMeshes; i++){
+		findMinVertAndNumVertices(mesh->indices, mesh->numIndices,
+		                          &firstVert, &inst->numVertices);
+		inst->indices = dstindices;
+		inst->vertices = &insthead->vertices[firstVert];
+		inst->mesh = mesh;
+		inst->material = mesh->material;
+		srcindices = mesh->indices;
+		if(header->flags & MeshHeader::TRISTRIP){
+			inst->numIndices = 0;
+			x = 0;
+			for(j = 0; j < mesh->numIndices-2; j++){
+				x1 = srcindices[j+x];
+				x ^= 1;
+				x2 = srcindices[j+x];
+				x3 = srcindices[j+2];
+				if(x1 != x2 && x2 != x3 && x1 != x3){
+					dstindices[0] = x1;
+					dstindices[1] = x2;
+					dstindices[2] = x3;
+					dstindices += 3;
+					inst->numIndices += 3;
+				}
+			}
+		}else{
+			inst->numIndices = mesh->numIndices;
+			for(j = 0; j < mesh->numIndices; j += 3){
+				dstindices[0] = srcindices[j+0] - firstVert;
+				dstindices[1] = srcindices[j+1] - firstVert;
+				dstindices[2] = srcindices[j+2] - firstVert;
+				dstindices += 3;
+			}
+		}
+
+		inst++;
+		mesh++;
+	}
+}
+
+struct MeshState
+{
+	int32 flags;
+	Matrix obj2cam;
+	Matrix obj2world;
+	int32 numVertices;
+	int32 numPrimitives;
+	SurfaceProperties surfProps;
+	RGBA matCol;
+};
+
+static void
+cam2screen(Im2DVertex *scrvert, CamSpace3DVertex *camvert)
+{
+	RGBA col;
+	float32 recipZ;
+	Camera *cam = (Camera*)engine->currentCamera;
+	int32 width = cam->frameBuffer->width;
+	int32 height = cam->frameBuffer->height;
+	recipZ = 1.0f/camvert->camVertex.z;
+
+//	scrvert->setScreenX(camvert->camVertex.x * recipZ * width);
+//	scrvert->setScreenY(camvert->camVertex.y * recipZ * height);
+	scrvert->setScreenX(camvert->camVertex.x * recipZ * width/2 + width/4);
+	scrvert->setScreenY(camvert->camVertex.y * recipZ * height/2 + height/4);
+	scrvert->setScreenZ(recipZ * cam->zScale + cam->zShift);
+	scrvert->setCameraZ(camvert->camVertex.z);
+	scrvert->setRecipCameraZ(recipZ);
+	scrvert->setU(camvert->texCoords.u, recipZ);
+	scrvert->setV(camvert->texCoords.v, recipZ);
+	convColor(&col, &camvert->color);
+	scrvert->setColor(col.red, col.green, col.blue, col.alpha);
+}
+
+static void
+transform(MeshState *mstate, ObjSpace3DVertex *objverts, CamSpace3DVertex *camverts, Im2DVertex *scrverts)
+{
+	int32 i;
+	float32 z;
+	Camera *cam = (Camera*)engine->currentCamera;
+
+	for(i = 0; i < mstate->numVertices; i++){
+		V3d::transformPoints(&camverts[i].camVertex, &objverts[i].objVertex, 1, &mstate->obj2cam);
+		convColor(&camverts[i].color, &objverts[i].color);
+		camverts[i].texCoords = objverts[i].texCoords;
+
+		camverts[i].clipFlags = 0;
+		z = camverts[i].camVertex.z;
+		// 0 < x < z
+		if(camverts[i].camVertex.x >= z) camverts[i].clipFlags |= CLIPXHI;
+		if(camverts[i].camVertex.x <= 0) camverts[i].clipFlags |= CLIPXLO;
+		// 0 < y < z
+		if(camverts[i].camVertex.y >= z) camverts[i].clipFlags |= CLIPYHI;
+		if(camverts[i].camVertex.y <= 0) camverts[i].clipFlags |= CLIPYLO;
+		// near < z < far
+		if(z >= cam->farPlane) camverts[i].clipFlags |= CLIPZHI;
+		if(z <= cam->nearPlane) camverts[i].clipFlags |= CLIPZLO;
+
+		cam2screen(&scrverts[i], &camverts[i]);
+	}
+}
+
+static void
+light(MeshState *mstate, ObjSpace3DVertex *objverts, CamSpace3DVertex *camverts)
+{
+	int32 i;
+	RGBAf colf;
+	RGBAf amb = ambLight;
+	amb = scale(ambLight, mstate->surfProps.ambient);
+	for(i = 0; i < mstate->numVertices; i++){
+		camverts[i].color = add(camverts[i].color, amb);
+		if((mstate->flags & Geometry::NORMALS) == 0)
+			continue;
+		for(int32 k = 0; k < numDirectionals; k++){
+			float32 f = dot(objverts[i].objNormal, neg(directionals[k].at));
+			if(f <= 0.0f) continue;
+			f *= mstate->surfProps.diffuse;
+			colf = scale(directionals[k].color, f);
+			camverts[i].color = add(camverts[i].color, colf);
+		}
+	}
+}
+
+static void
+postlight(MeshState *mstate, CamSpace3DVertex *camverts, Im2DVertex *scrverts)
+{
+	int32 i;
+	RGBA col;
+	RGBAf colf;
+	for(i = 0; i < mstate->numVertices; i++){
+		convColor(&colf, &mstate->matCol);
+		camverts[i].color = modulate(camverts[i].color, colf);
+		clamp(&camverts[i].color);
+		convColor(&col, &camverts[i].color);
+		scrverts[i].setColor(col.red, col.green, col.blue, col.alpha);
+	}
+}
+
+static int32
+cullTriangles(MeshState *mstate, CamSpace3DVertex *camverts, uint16 *indices, uint16 *clipindices)
+{
+	int32 i;
+	int32 x1, x2, x3;
+	int32 newNumPrims;
+	int32 numClip;
+
+	newNumPrims = 0;
+	numClip = 0;
+	for(i = 0; i < mstate->numPrimitives; i++, indices += 3){
+		x1 = indices[0];
+		x2 = indices[1];
+		x3 = indices[2];
+		// Only a simple frustum call
+		if(camverts[x1].clipFlags &
+		   camverts[x2].clipFlags &
+		   camverts[x3].clipFlags)
+			continue;
+		if(camverts[x1].clipFlags |
+		   camverts[x2].clipFlags |
+		   camverts[x3].clipFlags)
+			numClip++;
+		// The Triangle is in, probably
+		clipindices[0] = x1;
+		clipindices[1] = x2;
+		clipindices[2] = x3;
+		clipindices += 3;
+		newNumPrims++;
+	}
+	mstate->numPrimitives = newNumPrims;
+	return numClip;
+}
+
+static void
+interpVertex(CamSpace3DVertex *out, CamSpace3DVertex *v1, CamSpace3DVertex *v2, float32 t)
+{
+	float32 z;
+	float32 invt;
+	Camera *cam = (Camera*)engine->currentCamera;
+
+	invt = 1.0f - t;
+	out->camVertex = add(scale(v1->camVertex, invt), scale(v2->camVertex, t));
+	out->color = add(scale(v1->color, invt), scale(v2->color, t));
+	out->texCoords.u = v1->texCoords.u*invt + v2->texCoords.u*t;
+	out->texCoords.v = v1->texCoords.v*invt + v2->texCoords.v*t;
+
+	out->clipFlags = 0;
+	z = out->camVertex.z;
+	// 0 < x < z
+	if(out->camVertex.x >= z) out->clipFlags |= CLIPXHI;
+	if(out->camVertex.x <= 0) out->clipFlags |= CLIPXLO;
+	// 0 < y < z
+	if(out->camVertex.y >= z) out->clipFlags |= CLIPYHI;
+	if(out->camVertex.y <= 0) out->clipFlags |= CLIPYLO;
+	// near < z < far
+	if(z >= cam->farPlane) out->clipFlags |= CLIPZHI;
+	if(z <= cam->nearPlane) out->clipFlags |= CLIPZLO;
+}
+
+static void
+clipTriangles(MeshState *mstate, CamSpace3DVertex *camverts, Im2DVertex *scrverts, uint16 *indices, uint16 *clipindices)
+{
+	int32 i, j;
+	int32 x1, x2, x3;
+	int32 newNumPrims;
+	CamSpace3DVertex buf[18];
+	CamSpace3DVertex *in, *out, *tmp;
+	int32 nin, nout;
+	float32 t;
+	Camera *cam = (Camera*)engine->currentCamera;
+
+	newNumPrims = 0;
+	for(i = 0; i < mstate->numPrimitives; i++, indices += 3){
+		x1 = indices[0];
+		x2 = indices[1];
+		x3 = indices[2];
+
+		if((camverts[x1].clipFlags |
+		    camverts[x2].clipFlags |
+		    camverts[x3].clipFlags) == 0){
+			// all inside
+			clipindices[0] = x1;
+			clipindices[1] = x2;
+			clipindices[2] = x3;
+			clipindices += 3;
+			newNumPrims++;
+			continue;
+		}
+
+		// set up triangle
+		in = &buf[0];
+		out = &buf[9];
+		in[0] = camverts[x1];
+		in[1] = camverts[x2];
+		in[2] = camverts[x3];
+		nin = 3;
+		nout = 0;
+
+#define V(a) in[a].camVertex.
+
+		// clip z near
+		for(j = 0; j < nin; j++){
+			x1 = j;
+			x2 = (j+1) % nin;
+			if((in[x1].clipFlags ^ in[x2].clipFlags) & CLIPZLO){
+				t = (cam->nearPlane - V(x1)z)/(V(x2)z - V(x1)z);
+				interpVertex(&out[nout++], &in[x1], &in[x2], t);
+			}
+			if((in[x2].clipFlags & CLIPZLO) == 0)
+				out[nout++] = in[x2];
+		}
+		// clip z far
+		nin = nout; nout = 0;
+		tmp = in; in = out; out = tmp;
+		for(j = 0; j < nin; j++){
+			x1 = j;
+			x2 = (j+1) % nin;
+			if((in[x1].clipFlags ^ in[x2].clipFlags) & CLIPZHI){
+				t = (cam->farPlane - V(x1)z)/(V(x2)z - V(x1)z);
+				interpVertex(&out[nout++], &in[x1], &in[x2], t);
+			}
+			if((in[x2].clipFlags & CLIPZHI) == 0)
+				out[nout++] = in[x2];
+		}
+		// clip y 0
+		nin = nout; nout = 0;
+		tmp = in; in = out; out = tmp;
+		for(j = 0; j < nin; j++){
+			x1 = j;
+			x2 = (j+1) % nin;
+			if((in[x1].clipFlags ^ in[x2].clipFlags) & CLIPYLO){
+				t = -V(x1)y/(V(x2)y - V(x1)y);
+				interpVertex(&out[nout++], &in[x1], &in[x2], t);
+			}
+			if((in[x2].clipFlags & CLIPYLO) == 0)
+				out[nout++] = in[x2];
+		}
+		// clip y z
+		nin = nout; nout = 0;
+		tmp = in; in = out; out = tmp;
+		for(j = 0; j < nin; j++){
+			x1 = j;
+			x2 = (j+1) % nin;
+			if((in[x1].clipFlags ^ in[x2].clipFlags) & CLIPYHI){
+				t = (V(x1)z - V(x1)y)/(V(x1)z - V(x1)y + V(x2)y - V(x2)z);
+				interpVertex(&out[nout++], &in[x1], &in[x2], t);
+			}
+			if((in[x2].clipFlags & CLIPYHI) == 0)
+				out[nout++] = in[x2];
+		}
+		// clip x 0
+		nin = nout; nout = 0;
+		tmp = in; in = out; out = tmp;
+		for(j = 0; j < nin; j++){
+			x1 = j;
+			x2 = (j+1) % nin;
+			if((in[x1].clipFlags ^ in[x2].clipFlags) & CLIPXLO){
+				t = -V(x1)x/(V(x2)x - V(x1)x);
+				interpVertex(&out[nout++], &in[x1], &in[x2], t);
+			}
+			if((in[x2].clipFlags & CLIPXLO) == 0)
+				out[nout++] = in[x2];
+		}
+		// clip x z
+		nin = nout; nout = 0;
+		tmp = in; in = out; out = tmp;
+		for(j = 0; j < nin; j++){
+			x1 = j;
+			x2 = (j+1) % nin;
+			if((in[x1].clipFlags ^ in[x2].clipFlags) & CLIPXHI){
+				t = (V(x1)z - V(x1)x)/(V(x1)z - V(x1)x + V(x2)x - V(x2)z);
+				interpVertex(&out[nout++], &in[x1], &in[x2], t);
+			}
+			if((in[x2].clipFlags & CLIPXHI) == 0)
+				out[nout++] = in[x2];
+		}
+
+		// Insert new triangles
+		x1 = mstate->numVertices;
+		for(j = 0; j < nout; j++){
+			x2 = mstate->numVertices++;
+			camverts[x2] = out[j];
+			cam2screen(&scrverts[x2], &camverts[x2]);
+		}
+		x2 = x1+1;
+		for(j = 0; j < nout-2; j++){
+			clipindices[0] = x1;
+			clipindices[1] = x2++;
+			clipindices[2] = x2;
+			clipindices += 3;
+			newNumPrims++;
+		}
+	}
+	mstate->numPrimitives = newNumPrims;
+}
+
+static int32
+clipPoly(CamSpace3DVertex *in, int32 nin, CamSpace3DVertex *out, Plane *plane)
+{
+	int32 j;
+	int32 nout;
+	int32 x1, x2;
+	float32 d1, d2, t;
+
+	nout = 0;
+	for(j = 0; j < nin; j++){
+		x1 = j;
+		x2 = (j+1) % nin;
+
+		d1 = dot(plane->normal, in[x1].camVertex) + plane->distance;
+		d2 = dot(plane->normal, in[x2].camVertex) + plane->distance;
+		if(d1*d2 < 0.0f){
+			t = d1/(d1 - d2);
+			interpVertex(&out[nout++], &in[x1], &in[x2], t);
+		}
+		if(d2 >= 0.0f)
+			out[nout++] = in[x2];
+	}
+	return nout;
+}
+
+static void
+clipTriangles2(MeshState *mstate, CamSpace3DVertex *camverts, Im2DVertex *scrverts, uint16 *indices, uint16 *clipindices)
+{
+	int32 i, j;
+	int32 x1, x2, x3;
+	int32 newNumPrims;
+	CamSpace3DVertex buf[18];
+	CamSpace3DVertex *in, *out;
+	int32 nout;
+	Camera *cam = (Camera*)engine->currentCamera;
+
+	Plane planes[6] = {
+		{ {  0.0f,  0.0f,  1.0f }, -cam->nearPlane },	// z = near
+		{ {  0.0f,  0.0f, -1.0f },  cam->farPlane },	// z = far
+
+		{ { -1.0f,  0.0f,  1.0f }, 0.0f },	// x = w
+//		{ {  1.0f,  0.0f,  1.0f }, 0.0f },	// x = -w
+		{ {  1.0f,  0.0f,  0.0f }, 0.0f },	// x = 0
+
+		{ {  0.0f, -1.0f,  1.0f }, 0.0f },	// y = w
+//		{ {  0.0f,  1.0f,  1.0f }, 0.0f }	// y = -1
+		{ {  0.0f,  1.0f,  0.0f }, 0.0f }	// y = 0
+	};
+
+	newNumPrims = 0;
+	for(i = 0; i < mstate->numPrimitives; i++, indices += 3){
+		x1 = indices[0];
+		x2 = indices[1];
+		x3 = indices[2];
+
+		if((camverts[x1].clipFlags |
+		    camverts[x2].clipFlags |
+		    camverts[x3].clipFlags) == 0){
+			// all inside
+			clipindices[0] = x1;
+			clipindices[1] = x2;
+			clipindices[2] = x3;
+			clipindices += 3;
+			newNumPrims++;
+			continue;
+		}
+
+		// set up triangle
+		in = &buf[0];
+		out = &buf[9];
+		in[0] = camverts[x1];
+		in[1] = camverts[x2];
+		in[2] = camverts[x3];
+		nout = 0;
+
+		// clip here
+		if(nout = clipPoly(in,  3,    out, &planes[0]), nout == 0) continue;
+		if(nout = clipPoly(out, nout, in,  &planes[1]), nout == 0) continue;
+		if(nout = clipPoly(in,  nout, out, &planes[2]), nout == 0) continue;
+		if(nout = clipPoly(out, nout, in,  &planes[3]), nout == 0) continue;
+		if(nout = clipPoly(in,  nout, out, &planes[4]), nout == 0) continue;
+		if(nout = clipPoly(out, nout, in,  &planes[5]), nout == 0) continue;
+		out = in;
+
+		// Insert new triangles
+		x1 = mstate->numVertices;
+		for(j = 0; j < nout; j++){
+			x2 = mstate->numVertices++;
+			camverts[x2] = out[j];
+			cam2screen(&scrverts[x2], &camverts[x2]);
+		}
+		x2 = x1+1;
+		for(j = 0; j < nout-2; j++){
+			clipindices[0] = x1;
+			clipindices[1] = x2++;
+			clipindices[2] = x2;
+			clipindices += 3;
+			newNumPrims++;
+		}
+	}
+	mstate->numPrimitives = newNumPrims;
+}
+
+static void
+submitTriangles(RWDEVICE::Im2DVertex *scrverts, int32 numVerts, uint16 *indices, int32 numTris)
+{
+	rw::SetRenderStatePtr(rw::TEXTURERASTER, nil);
+	if(dosoftras)
+		rastest_renderTriangles(scrverts, numVerts, indices, numTris);
+	else{
+		//int i;
+		//for(i = 0; i < numVerts; i++){
+		//	scrverts[i].x = (int)(scrverts[i].x*16.0f) / 16.0f;
+		//	scrverts[i].y = (int)(scrverts[i].y*16.0f) / 16.0f;
+		//}
+		im2d::RenderIndexedPrimitive(rw::PRIMTYPETRILIST, scrverts, numVerts,
+			indices, numTris*3);
+	}
+}
+
+
+static void
+drawMesh(MeshState *mstate, ObjSpace3DVertex *objverts, uint16 *indices)
+{
+	CamSpace3DVertex *camverts;
+	Im2DVertex *scrverts;
+	uint16 *cullindices, *clipindices;
+	uint32 numClip;
+
+	camverts = rwNewT(CamSpace3DVertex, mstate->numVertices, MEMDUR_FUNCTION);
+	scrverts = rwNewT(Im2DVertex, mstate->numVertices, MEMDUR_FUNCTION);
+	cullindices = rwNewT(uint16, mstate->numPrimitives*3, MEMDUR_FUNCTION);
+
+	transform(mstate, objverts, camverts, scrverts);
+
+	numClip = cullTriangles(mstate, camverts, indices, cullindices);
+
+//	int32 i;
+//	for(i = 0; i < mstate->numVertices; i++){
+//		if(camverts[i].clipFlags & CLIPX)
+//			camverts[i].color.red = 255;
+//		if(camverts[i].clipFlags & CLIPY)
+//			camverts[i].color.green = 255;
+//		if(camverts[i].clipFlags & CLIPZ)
+//			camverts[i].color.blue = 255;
+//	}
+
+	light(mstate, objverts, camverts);
+
+//	mstate->matCol.red = 255;
+//	mstate->matCol.green = 255;
+//	mstate->matCol.blue = 255;
+
+	postlight(mstate, camverts, scrverts);
+
+	// each triangle can have a maximum of 9 vertices (7 triangles) after clipping
+	// so resize to whatever we may need
+	camverts = rwResizeT(CamSpace3DVertex, camverts, mstate->numVertices + numClip*9, MEMDUR_FUNCTION);
+	scrverts = rwResizeT(Im2DVertex, scrverts, mstate->numVertices + numClip*9, MEMDUR_FUNCTION);
+	clipindices = rwNewT(uint16, mstate->numPrimitives*3 + numClip*7*3, MEMDUR_FUNCTION);
+
+//	clipTriangles(mstate, camverts, scrverts, cullindices, clipindices);
+	clipTriangles2(mstate, camverts, scrverts, cullindices, clipindices);
+
+	submitTriangles(scrverts, mstate->numVertices, clipindices, mstate->numPrimitives);
+
+	rwFree(camverts);
+	rwFree(scrverts);
+	rwFree(cullindices);
+	rwFree(clipindices);
+}
+
+static void
+drawAtomic(Atomic *atomic)
+{
+	MeshState mstate;
+	Matrix lightmat;
+	Geometry *geo;
+	MeshHeader *header;
+	InstanceData *inst;
+	int i;
+	Camera *cam = (Camera*)engine->currentCamera;
+
+	instanceAtomic(atomic);
+
+	mstate.obj2world = *atomic->getFrame()->getLTM();
+	mstate.obj2cam = mstate.obj2world;
+	mstate.obj2cam.transform(&cam->viewMatrix, COMBINEPOSTCONCAT);
+	Matrix::invert(&lightmat, &mstate.obj2world);
+	enumLights(&lightmat);
+
+	geo = atomic->geometry;
+	header = geo->meshHeader;
+	inst = ((InstanceDataHeader*)geo->instData)->inst;
+	for(i = 0; i < header->numMeshes; i++){
+		mstate.flags = geo->flags;
+		mstate.numVertices = inst->numVertices;
+		mstate.numPrimitives = inst->numIndices / 3;
+		mstate.surfProps = inst->material->surfaceProps;
+		mstate.matCol = inst->material->color;
+		drawMesh(&mstate, inst->vertices, inst->indices);
+		inst++;
+	}
+}
+
+void
+tlTest(Clump *clump)
+{
+	FORLIST(lnk, clump->atomics){
+		Atomic *a = Atomic::fromClump(lnk);
+		drawAtomic(a);
+	}
+}
+
+}
+
+static Im2DVertex *clipverts;
+static int32 numClipverts;
+
+void
+genIm3DTransform(void *vertices, int32 numVertices, Matrix *world)
+{
+	Im3DVertex *objverts;
+	V3d pos;
+	Matrix xform;
+	Camera *cam;
+	int32 i;
+	objverts = (Im3DVertex*)vertices;
+
+	cam = (Camera*)engine->currentCamera;
+	int32 width = cam->frameBuffer->width;
+	int32 height = cam->frameBuffer->height;
+
+
+	xform = cam->viewMatrix;
+	if(world)
+		xform.transform(world, COMBINEPRECONCAT);
+
+	clipverts = rwNewT(Im2DVertex, numVertices, MEMDUR_EVENT);
+	numClipverts = numVertices;
+
+	for(i = 0; i < numVertices; i++){
+		V3d::transformPoints(&pos, &objverts[i].position, 1, &xform);
+
+		float32 recipZ = 1.0f/pos.z;
+		RGBA c = objverts[i].getColor();
+
+		clipverts[i].setScreenX(pos.x * recipZ * width);
+		clipverts[i].setScreenY(pos.y * recipZ * height);
+		clipverts[i].setScreenZ(recipZ * cam->zScale + cam->zShift);
+		clipverts[i].setCameraZ(pos.z);
+		clipverts[i].setRecipCameraZ(recipZ);
+		clipverts[i].setColor(c.red, c.green, c.blue, c.alpha);
+		clipverts[i].setU(objverts[i].u, recipZ);
+		clipverts[i].setV(objverts[i].v, recipZ);
+	}
+}
+
+void
+genIm3DRenderIndexed(PrimitiveType prim, void *indices, int32 numIndices)
+{
+	im2d::RenderIndexedPrimitive(prim, clipverts, numClipverts, indices, numIndices);
+}
+
+void
+genIm3DEnd(void)
+{
+	rwFree(clipverts);
+	clipverts = nil;
+	numClipverts = 0;
+}