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one last commit before moving to models.c PR

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iann 2025-11-04 05:36:19 +09:00
parent 892ec64fd4
commit 3617ebd970
1 changed files with 13 additions and 12 deletions
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25
examples/core/core_3d_fixed_function_didactic.c
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@ -177,7 +177,7 @@ int main(void)
}
if (!worldMesh->texcoords)
{
worldMesh->texcoords = (float *)MemAlloc(sizeof(float)*worldMesh->vertexCount*2);
worldMesh->texcoords = (float *)RL_CALLOC(worldMesh->vertexCount, sizeof(Vector2));
// Demonstrate planar mapping ("reasonable" default): https://en.wikipedia.org/wiki/Planar_projection.
BoundingBox bounds = GetMeshBoundingBox(*worldMesh);
Vector3 extents = Vector3Subtract(bounds.max, bounds.min);
@ -200,12 +200,13 @@ int main(void)
ndcMesh.vertexCount = worldMesh->vertexCount;
ndcMesh.triangleCount = worldMesh->triangleCount;
ndcMesh.vertices = RL_CALLOC(ndcMesh.vertexCount, sizeof(Vector3));
ndcMesh.texcoords = RL_CALLOC(ndcMesh.vertexCount, sizeof(Vector2));
ndcMesh.indices = RL_CALLOC(ndcMesh.triangleCount, sizeof(Triangle));
ndcMesh.colors = RL_CALLOC(ndcMesh.vertexCount, sizeof(Color));
memcpy(ndcMesh.colors, worldMesh->colors, ndcMesh.vertexCount*sizeof(Color));
memcpy(ndcMesh.texcoords, worldMesh->texcoords, ndcMesh.vertexCount*sizeof(Vector2));
memcpy(ndcMesh.indices, worldMesh->indices, ndcMesh.triangleCount*sizeof(Triangle));
//NOTE: test things by toggling through the LOADED MESHES VS GEN MESHES when removing planar texcoord fill above
if (worldMesh->texcoords) ndcMesh.texcoords = RL_CALLOC(ndcMesh.vertexCount, sizeof(Vector2));
if (worldMesh->texcoords) memcpy(ndcMesh.texcoords, worldMesh->texcoords, ndcMesh.vertexCount*sizeof(Vector2));
if (worldMesh->colors) ndcMesh.colors = RL_CALLOC(ndcMesh.vertexCount, sizeof(Color));
if (worldMesh->colors) memcpy(ndcMesh.colors, worldMesh->colors, ndcMesh.vertexCount*sizeof(Color));
ndcModels[i] = LoadModelFromMesh(ndcMesh);
ndcModels[i].materials[0].maps[MATERIAL_MAP_ALBEDO].texture = meshTextures[i];
@ -508,7 +509,7 @@ static void PerspectiveIncorrectCapture(Camera3D *main, float aspect, float near
float yReflect = Lerp(1.0f, -1.0f, ReflectBlendFactor(0.0f));
rlColor4ub(WHITE.r, WHITE.g, WHITE.b, WHITE.a); // just to emphasize raylib Colors are ub 0~255 not floats
if (TEXTURE_MODE())
if (TEXTURE_MODE() && mesh->texcoords)
rlEnableTexture(meshTexture.id);
else
rlDisableTexture();
@ -535,20 +536,20 @@ static void PerspectiveIncorrectCapture(Camera3D *main, float aspect, float near
b = AspectCorrectAndReflectNearPlane(Intersect(main, near, b), centerNearPlane, right, up, xAspect, yReflect);
c = AspectCorrectAndReflectNearPlane(Intersect(main, near, c), centerNearPlane, right, up, xAspect, yReflect);
if (COLOR_MODE()) rlColor4ub(colors[triangles[i][0]].r, colors[triangles[i][0]].g, colors[triangles[i][0]].b, colors[triangles[i][0]].a);
if (TEXTURE_MODE()) rlTexCoord2f(texcoords[triangles[i][0]].x, texcoords[triangles[i][0]].y);
if (COLOR_MODE() && mesh->colors) rlColor4ub(colors[triangles[i][0]].r, colors[triangles[i][0]].g, colors[triangles[i][0]].b, colors[triangles[i][0]].a);
if (TEXTURE_MODE() && mesh->texcoords) rlTexCoord2f(texcoords[triangles[i][0]].x, texcoords[triangles[i][0]].y);
rlVertex3f(a.x, a.y, a.z);
// vertex winding!! to account for reflection toggle (will draw the inside of the geometry otherwise)
int secondIndex = (NDC_SPACE() && REFLECT_Y())? triangles[i][2] : triangles[i][1];
Vector3 secondVertex = (NDC_SPACE() && REFLECT_Y())? c : b;
if (COLOR_MODE()) rlColor4ub(colors[secondIndex].r, colors[secondIndex].g, colors[secondIndex].b, colors[secondIndex].a);
if (TEXTURE_MODE()) rlTexCoord2f(texcoords[secondIndex].x, texcoords[secondIndex].y);
if (COLOR_MODE() && mesh->colors) rlColor4ub(colors[secondIndex].r, colors[secondIndex].g, colors[secondIndex].b, colors[secondIndex].a);
if (TEXTURE_MODE() && mesh->texcoords) rlTexCoord2f(texcoords[secondIndex].x, texcoords[secondIndex].y);
rlVertex3f(secondVertex.x, secondVertex.y, secondVertex.z);
int thirdIndex = (NDC_SPACE() && REFLECT_Y())? triangles[i][1] : triangles[i][2];
Vector3 thirdVertex = (NDC_SPACE() && REFLECT_Y())? b : c;
if (COLOR_MODE()) rlColor4ub(colors[thirdIndex].r, colors[thirdIndex].g, colors[thirdIndex].b, colors[thirdIndex].a);
if (TEXTURE_MODE()) rlTexCoord2f(texcoords[thirdIndex].x, texcoords[thirdIndex].y);
if (COLOR_MODE() && mesh->colors) rlColor4ub(colors[thirdIndex].r, colors[thirdIndex].g, colors[thirdIndex].b, colors[thirdIndex].a);
if (TEXTURE_MODE() && mesh->texcoords) rlTexCoord2f(texcoords[thirdIndex].x, texcoords[thirdIndex].y);
rlVertex3f(thirdVertex.x, thirdVertex.y, thirdVertex.z);
}