Esempio n. 1
0
VertexData TransformUnit::ReadVertex(VertexReader& vreader)
{
	VertexData vertex;

	float pos[3];
	// VertexDecoder normally scales z, but we want it unscaled.
	vreader.ReadPosThroughZ16(pos);

	if (!gstate.isModeClear() && gstate.isTextureMapEnabled() && vreader.hasUV()) {
		float uv[2];
		vreader.ReadUV(uv);
		vertex.texturecoords = Vec2<float>(uv[0], uv[1]);
	}

	if (vreader.hasNormal()) {
		float normal[3];
		vreader.ReadNrm(normal);
		vertex.normal = Vec3<float>(normal[0], normal[1], normal[2]);

		if (gstate.areNormalsReversed())
			vertex.normal = -vertex.normal;
	}

	if (vertTypeIsSkinningEnabled(gstate.vertType) && !gstate.isModeThrough()) {
		float W[8] = { 1.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f };
		vreader.ReadWeights(W);

		Vec3<float> tmppos(0.f, 0.f, 0.f);
		Vec3<float> tmpnrm(0.f, 0.f, 0.f);

		for (int i = 0; i < vertTypeGetNumBoneWeights(gstate.vertType); ++i) {
			Mat3x3<float> bone(&gstate.boneMatrix[12*i]);
			tmppos += (bone * ModelCoords(pos[0], pos[1], pos[2]) + Vec3<float>(gstate.boneMatrix[12*i+9], gstate.boneMatrix[12*i+10], gstate.boneMatrix[12*i+11])) * W[i];
			if (vreader.hasNormal())
				tmpnrm += (bone * vertex.normal) * W[i];
		}

		pos[0] = tmppos.x;
		pos[1] = tmppos.y;
		pos[2] = tmppos.z;
		if (vreader.hasNormal())
			vertex.normal = tmpnrm;
	}

	if (vreader.hasColor0()) {
		float col[4];
		vreader.ReadColor0(col);
		vertex.color0 = Vec4<int>(col[0]*255, col[1]*255, col[2]*255, col[3]*255);
	} else {
		vertex.color0 = Vec4<int>(gstate.getMaterialAmbientR(), gstate.getMaterialAmbientG(), gstate.getMaterialAmbientB(), gstate.getMaterialAmbientA());
	}

	if (vreader.hasColor1()) {
		float col[3];
		vreader.ReadColor1(col);
		vertex.color1 = Vec3<int>(col[0]*255, col[1]*255, col[2]*255);
	} else {
		vertex.color1 = Vec3<int>(0, 0, 0);
	}

	if (!gstate.isModeThrough()) {
		vertex.modelpos = ModelCoords(pos[0], pos[1], pos[2]);
		vertex.worldpos = WorldCoords(TransformUnit::ModelToWorld(vertex.modelpos));
		ModelCoords viewpos = TransformUnit::WorldToView(vertex.worldpos);
		vertex.clippos = ClipCoords(TransformUnit::ViewToClip(viewpos));
		if (gstate.isFogEnabled()) {
			float fog_end = getFloat24(gstate.fog1);
			float fog_slope = getFloat24(gstate.fog2);
			// Same fixup as in ShaderManagerGLES.cpp
			if (my_isnanorinf(fog_end)) {
				// Not really sure what a sensible value might be, but let's try 64k.
				fog_end = std::signbit(fog_end) ? -65535.0f : 65535.0f;
			}
			if (my_isnanorinf(fog_slope)) {
				fog_slope = std::signbit(fog_slope) ? -65535.0f : 65535.0f;
			}
			vertex.fogdepth = (viewpos.z + fog_end) * fog_slope;
		} else {
			vertex.fogdepth = 1.0f;
		}
		vertex.screenpos = ClipToScreenInternal(vertex.clippos, &outside_range_flag);

		if (vreader.hasNormal()) {
			vertex.worldnormal = TransformUnit::ModelToWorldNormal(vertex.normal);
			// TODO: Isn't there a flag that controls whether to normalize the normal?
			vertex.worldnormal /= vertex.worldnormal.Length();
		} else {
			vertex.worldnormal = Vec3<float>(0.0f, 0.0f, 1.0f);
		}

		Lighting::Process(vertex, vreader.hasColor0());
	} else {
		vertex.screenpos.x = (int)(pos[0] * 16) + gstate.getOffsetX16();
		vertex.screenpos.y = (int)(pos[1] * 16) + gstate.getOffsetY16();
		vertex.screenpos.z = pos[2];
		vertex.clippos.w = 1.f;
		vertex.fogdepth = 1.f;
	}

	return vertex;
}
Esempio n. 2
0
static VertexData ReadVertex(VertexReader& vreader)
{
	VertexData vertex;

	float pos[3];
	// VertexDecoder normally scales z, but we want it unscaled.
	vreader.ReadPosZ16(pos);

	if (!gstate.isModeClear() && gstate.isTextureMapEnabled() && vreader.hasUV()) {
		float uv[2];
		vreader.ReadUV(uv);
		vertex.texturecoords = Vec2<float>(uv[0], uv[1]);
	}

	if (vreader.hasNormal()) {
		float normal[3];
		vreader.ReadNrm(normal);
		vertex.normal = Vec3<float>(normal[0], normal[1], normal[2]);

		if (gstate.areNormalsReversed())
			vertex.normal = -vertex.normal;
	}

	if (gstate.isSkinningEnabled() && !gstate.isModeThrough()) {
		float W[8] = { 1.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f };
		vreader.ReadWeights(W);

		Vec3<float> tmppos(0.f, 0.f, 0.f);
		Vec3<float> tmpnrm(0.f, 0.f, 0.f);

		for (int i = 0; i < gstate.getNumBoneWeights(); ++i) {
			Mat3x3<float> bone(&gstate.boneMatrix[12*i]);
			tmppos += W[i] * (bone * ModelCoords(pos[0], pos[1], pos[2]) + Vec3<float>(gstate.boneMatrix[12*i+9], gstate.boneMatrix[12*i+10], gstate.boneMatrix[12*i+11]));
			if (vreader.hasNormal())
				tmpnrm += W[i] * (bone * vertex.normal);
		}

		pos[0] = tmppos.x;
		pos[1] = tmppos.y;
		pos[2] = tmppos.z;
		if (vreader.hasNormal())
			vertex.normal = tmpnrm;
	}

	if (vreader.hasColor0()) {
		float col[4];
		vreader.ReadColor0(col);
		vertex.color0 = Vec4<int>(col[0]*255, col[1]*255, col[2]*255, col[3]*255);
	} else {
		vertex.color0 = Vec4<int>(gstate.getMaterialAmbientR(), gstate.getMaterialAmbientG(), gstate.getMaterialAmbientB(), gstate.getMaterialAmbientA());
	}

	if (vreader.hasColor1()) {
		float col[3];
		vreader.ReadColor1(col);
		vertex.color1 = Vec3<int>(col[0]*255, col[1]*255, col[2]*255);
	} else {
		vertex.color1 = Vec3<int>(0, 0, 0);
	}

	if (!gstate.isModeThrough()) {
		vertex.modelpos = ModelCoords(pos[0], pos[1], pos[2]);
		vertex.worldpos = WorldCoords(TransformUnit::ModelToWorld(vertex.modelpos));
		vertex.clippos = ClipCoords(TransformUnit::ViewToClip(TransformUnit::WorldToView(vertex.worldpos)));
		vertex.screenpos = ClipToScreenInternal(vertex.clippos);

		if (vreader.hasNormal()) {
			vertex.worldnormal = TransformUnit::ModelToWorld(vertex.normal) - Vec3<float>(gstate.worldMatrix[9], gstate.worldMatrix[10], gstate.worldMatrix[11]);
			vertex.worldnormal /= vertex.worldnormal.Length(); // TODO: Shouldn't be necessary..
		}

		Lighting::Process(vertex);
	} else {
		vertex.screenpos.x = (u32)pos[0] * 16 + gstate.getOffsetX16();
		vertex.screenpos.y = (u32)pos[1] * 16 + gstate.getOffsetY16();
		vertex.screenpos.z = pos[2];
		vertex.clippos.w = 1.f;
	}

	return vertex;
}