Catcrafts/Crafter.Graphics
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

added heightmap stride

Browse source
This commit is contained in:
Jorijn van der Graaf 2025-05-26 00:35:51 +02:00
commit b1b4b4a44a
3 changed files with 13 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

10
Crafter.Graphics-HeightmapShader.cppm
View file

@ -36,10 +36,9 @@ import Crafter.Math;
namespace Crafter {
struct HeightMapData {
MatrixRowMajor<float, 4, 4, 1> mvp;
uint32_t sizeX;
uint32_t sizeZ;
uint32_t stride;
float spacing;
uint32_t padding[13];
uint32_t padding[14];
};
export template <typename VertexType>
@ -51,13 +50,12 @@ namespace Crafter {
Buffer<VertexType> heights;
std::uint32_t threadCount;
EventListener<void> cameraUpdate;
HeightmapShader(uint32_t sizeX, uint32_t sizeZ, float spacing, Camera* camera) : threadCount(sizeX * sizeZ), heights(VK_BUFFER_USAGE_STORAGE_BUFFER_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT, sizeX * sizeZ * 4 * 64), data(VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT), camera(camera), cameraUpdate(
HeightmapShader(uint32_t amount, uint32_t stride, float spacing, Camera* camera) : threadCount(amount), heights(VK_BUFFER_USAGE_STORAGE_BUFFER_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT, amount * 4 * 64), data(VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT), camera(camera), cameraUpdate(
&camera->onUpdate, [this](){
Update();
}
) {
data.value->sizeX = sizeX*2;
data.value->sizeZ = sizeZ*2;
data.value->stride = stride;
data.value->spacing = spacing;
transform = MatrixRowMajor<float, 4, 4, 1>::Identity();
}

17
MeshShaderHeightmapRGBA.glsl
View file

@ -24,10 +24,9 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
layout (binding = 0) uniform UBO
{
mat4 modelProjectionView;
uint sizeX;
uint sizeZ;
uint stride;
float spacing;
uint padding[13];
uint padding[14];
} ubo;
struct VertexType
@ -56,13 +55,13 @@ void main()
SetMeshOutputsEXT(256, 128);
uint linearID = gl_LocalInvocationID.x;
uint quadX = linearID % ubo.sizeX;
uint quadZ = linearID / ubo.sizeX;
uint quadX = linearID % ubo.stride;
uint quadZ = linearID / ubo.stride;
VertexType vertex1 = vertex.pos[quadZ * ubo.sizeX + quadX];
VertexType vertex2 = vertex.pos[quadZ * ubo.sizeX + quadX + 1];
VertexType vertex3 = vertex.pos[(quadZ+1) * ubo.sizeX + quadX];
VertexType vertex4 = vertex.pos[(quadZ+1) * ubo.sizeX + quadX + 1];
VertexType vertex1 = vertex.pos[quadZ * ubo.stride + quadX];
VertexType vertex2 = vertex.pos[quadZ * ubo.stride + quadX + 1];
VertexType vertex3 = vertex.pos[(quadZ+1) * ubo.stride + quadX];
VertexType vertex4 = vertex.pos[(quadZ+1) * ubo.stride + quadX + 1];
uint vertexID = gl_LocalInvocationID.x*4;

2
main.cpp
View file

@ -50,7 +50,7 @@ int main() {
DescriptorSet<MeshVulkanShader, FragmentShader> descriptors;
HeightmapShader<HeightRGBA> meshShader(4, 4, 1, &camera);
HeightmapShader<HeightRGBA> meshShader(4, 2, 1, &camera);
for(uint32_t i = 0; i < 1*1*4*64; i++) {
meshShader.heights.value[i].height = -0.5;
meshShader.heights.value[i].r = 255;