88da989ad7
change asset loading of images to be sRGB use wayland by default on linux unless we are running under renderdoc changed shaders to be combined vertex and fragment in a single file require Vulkan 1.3 and enable shaderDrawParameters
114 lines
3.0 KiB
Plaintext
114 lines
3.0 KiB
Plaintext
struct VertexShaderInput {
|
|
// Per Vertex
|
|
uint vertex_id : SV_VertexID;
|
|
float3 pos;
|
|
|
|
// Per Instance
|
|
uint instance_id : SV_InstanceID;
|
|
uint tile_info;
|
|
};
|
|
|
|
struct VertexShaderOutput {
|
|
float4 pos : SV_POSITION;
|
|
float2 uv;
|
|
};
|
|
|
|
struct PixelShaderOutput {
|
|
float4 color : SV_TARGET;
|
|
};
|
|
|
|
[[vk::binding(0, 1)]]
|
|
cbuffer constants {
|
|
float aspect_ratio;
|
|
float fovy_degrees;
|
|
float camera_x;
|
|
float camera_y;
|
|
float camera_z;
|
|
uint map_width;
|
|
};
|
|
|
|
[[vk::binding(0, 0)]]
|
|
StructuredBuffer<float4> tile_infos;
|
|
|
|
float4x4 projection(float fovy, float aspect, float near) {
|
|
float g = 1.0 / tan(fovy * 0.5);
|
|
|
|
return {
|
|
g / aspect, 0, 0, 0,
|
|
0, g, 0, 0,
|
|
0, 0, 0, near,
|
|
0, 0, 1, 0,
|
|
};
|
|
}
|
|
|
|
float4x4 view(float3 pos) {
|
|
return {
|
|
1, 0, 0, -pos.x,
|
|
0, 1, 0, -pos.y,
|
|
0, 0, 1, -pos.z,
|
|
0, 0, 0, 1,
|
|
};
|
|
}
|
|
|
|
[shader("vertex")]
|
|
VertexShaderOutput main_vertex(VertexShaderInput input) {
|
|
VertexShaderOutput output;
|
|
float2 tile_pos = float2(input.instance_id % map_width, -float(input.instance_id / map_width));
|
|
|
|
uint tile_type = input.tile_info & 0xffff;
|
|
uint rotation = (input.tile_info >> 16) & 0x3;
|
|
|
|
float fovy = radians(fovy_degrees);
|
|
float4x4 view_matrix = view(float3(camera_x, -camera_y, camera_z));
|
|
float4x4 projection_matrix = projection(fovy, aspect_ratio, 0.001);
|
|
float4x4 view_projection_matrix = mul(projection_matrix, view_matrix);
|
|
|
|
output.pos = mul(view_projection_matrix, float4(tile_pos + input.pos.xy, 0, 1));
|
|
|
|
float4 uv_min_max = tile_infos.Load(tile_type);
|
|
|
|
switch (rotation) {
|
|
case 0: switch (input.vertex_id) {
|
|
case 0: output.uv = uv_min_max.xy; break;
|
|
case 1: output.uv = uv_min_max.zy; break;
|
|
case 2: output.uv = uv_min_max.zw; break;
|
|
case 3: output.uv = uv_min_max.xw; break;
|
|
} break;
|
|
|
|
case 1: switch (input.vertex_id) {
|
|
case 0: output.uv = uv_min_max.zy; break;
|
|
case 1: output.uv = uv_min_max.zw; break;
|
|
case 2: output.uv = uv_min_max.xw; break;
|
|
case 3: output.uv = uv_min_max.xy; break;
|
|
} break;
|
|
|
|
case 2: switch (input.vertex_id) {
|
|
case 0: output.uv = uv_min_max.zw; break;
|
|
case 1: output.uv = uv_min_max.xw; break;
|
|
case 2: output.uv = uv_min_max.xy; break;
|
|
case 3: output.uv = uv_min_max.zy; break;
|
|
} break;
|
|
|
|
case 3: switch (input.vertex_id) {
|
|
case 0: output.uv = uv_min_max.xw; break;
|
|
case 1: output.uv = uv_min_max.xy; break;
|
|
case 2: output.uv = uv_min_max.zy; break;
|
|
case 3: output.uv = uv_min_max.zw; break;
|
|
} break;
|
|
}
|
|
|
|
return output;
|
|
}
|
|
|
|
[[vk::binding(0, 2)]]
|
|
Sampler2D<float4> tex1;
|
|
|
|
[shader("fragment")]
|
|
PixelShaderOutput main_fragment(VertexShaderOutput input) {
|
|
PixelShaderOutput output;
|
|
|
|
output.color = tex1.Sample(float2(input.uv));
|
|
|
|
return output;
|
|
}
|