81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)
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// SPDX-FileCopyrightText: 2024 Jorrit Rouwe
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// SPDX-License-Identifier: MIT
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#include <Jolt/Jolt.h>
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#ifdef JPH_DEBUG_RENDERER
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#include <Jolt/Renderer/DebugRendererSimple.h>
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JPH_NAMESPACE_BEGIN
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DebugRendererSimple::DebugRendererSimple()
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{
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Initialize();
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}
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DebugRenderer::Batch DebugRendererSimple::CreateTriangleBatch(const Triangle *inTriangles, int inTriangleCount)
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{
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BatchImpl *batch = new BatchImpl;
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if (inTriangles == nullptr || inTriangleCount == 0)
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return batch;
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batch->mTriangles.assign(inTriangles, inTriangles + inTriangleCount);
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return batch;
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}
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DebugRenderer::Batch DebugRendererSimple::CreateTriangleBatch(const Vertex *inVertices, int inVertexCount, const uint32 *inIndices, int inIndexCount)
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{
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BatchImpl *batch = new BatchImpl;
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if (inVertices == nullptr || inVertexCount == 0 || inIndices == nullptr || inIndexCount == 0)
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return batch;
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// Convert indexed triangle list to triangle list
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batch->mTriangles.resize(inIndexCount / 3);
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for (size_t t = 0; t < batch->mTriangles.size(); ++t)
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{
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Triangle &triangle = batch->mTriangles[t];
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triangle.mV[0] = inVertices[inIndices[t * 3 + 0]];
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triangle.mV[1] = inVertices[inIndices[t * 3 + 1]];
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triangle.mV[2] = inVertices[inIndices[t * 3 + 2]];
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}
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return batch;
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}
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void DebugRendererSimple::DrawGeometry(RMat44Arg inModelMatrix, const AABox &inWorldSpaceBounds, float inLODScaleSq, ColorArg inModelColor, const GeometryRef &inGeometry, ECullMode inCullMode, ECastShadow inCastShadow, EDrawMode inDrawMode)
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{
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// Figure out which LOD to use
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const LOD *lod = inGeometry->mLODs.data();
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if (mCameraPosSet)
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lod = &inGeometry->GetLOD(Vec3(mCameraPos), inWorldSpaceBounds, inLODScaleSq);
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// Draw the batch
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const BatchImpl *batch = static_cast<const BatchImpl *>(lod->mTriangleBatch.GetPtr());
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for (const Triangle &triangle : batch->mTriangles)
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{
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RVec3 v0 = inModelMatrix * Vec3(triangle.mV[0].mPosition);
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RVec3 v1 = inModelMatrix * Vec3(triangle.mV[1].mPosition);
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RVec3 v2 = inModelMatrix * Vec3(triangle.mV[2].mPosition);
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Color color = inModelColor * triangle.mV[0].mColor;
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switch (inDrawMode)
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{
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case EDrawMode::Wireframe:
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DrawLine(v0, v1, color);
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DrawLine(v1, v2, color);
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DrawLine(v2, v0, color);
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break;
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case EDrawMode::Solid:
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DrawTriangle(v0, v1, v2, color, inCastShadow);
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break;
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}
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}
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}
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JPH_NAMESPACE_END
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#endif // JPH_DEBUG_RENDERER
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