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Stencil shadows (cg_shadows = 2).

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This commit is contained in:
Artem Kharytoniuk
2017-05-17 22:23:43 +03:00
parent 9df7be0314
commit 0f1849da24
3 changed files with 212 additions and 65 deletions
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84
src/engine/renderer/vk.cpp
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@@ -1089,10 +1089,44 @@ void vk_initialize() {
def.polygon_offset = false;
def.clipping_plane = false;
def.mirror = false;
vk.skybox_pipeline = create_pipeline(def);
}
// Q3 stencil shadows
{
{
Vk_Pipeline_Def def;
def.polygon_offset = false;
def.state_bits = 0;
def.shader_type = Vk_Shader_Type::single_texture;
def.clipping_plane = false;
def.shadow_phase = Vk_Shadow_Phase::shadow_edges_rendering;
cullType_t cull_types[2] = {CT_FRONT_SIDED, CT_BACK_SIDED};
bool mirror_flags[2] = {false, true};
for (int i = 0; i < 2; i++) {
def.face_culling = cull_types[i];
for (int j = 0; j < 2; j++) {
def.mirror = mirror_flags[j];
vk.shadow_volume_pipelines[i][j] = create_pipeline(def);
}
}
}
{
Vk_Pipeline_Def def;
def.face_culling = CT_FRONT_SIDED;
def.polygon_offset = false;
def.state_bits = GLS_DEPTHMASK_TRUE | GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ZERO;
def.shader_type = Vk_Shader_Type::single_texture;
def.clipping_plane = false;
def.mirror = false;
def.shadow_phase = Vk_Shadow_Phase::fullscreen_quad_rendering;
vk.shadow_finish_pipeline = create_pipeline(def);
}
}
// fog and dlights
{
Vk_Pipeline_Def def;
@@ -1170,6 +1204,13 @@ void vk_shutdown() {
vkDestroyShaderModule(vk.device, vk.multi_texture_add_fs, nullptr);
vkDestroyPipeline(vk.device, vk.skybox_pipeline, nullptr);
for (int i = 0; i < 2; i++)
for (int j = 0; j < 2; j++) {
vkDestroyPipeline(vk.device, vk.shadow_volume_pipelines[i][j], nullptr);
}
vkDestroyPipeline(vk.device, vk.shadow_finish_pipeline, nullptr);
for (int i = 0; i < 2; i++)
for (int j = 0; j < 3; j++)
for (int k = 0; k < 2; k++) {
@@ -1581,15 +1622,45 @@ static VkPipeline create_pipeline(const Vk_Pipeline_Def& def) {
depth_stencil_state.depthWriteEnable = (def.state_bits & GLS_DEPTHMASK_TRUE) ? VK_TRUE : VK_FALSE;
depth_stencil_state.depthCompareOp = (def.state_bits & GLS_DEPTHFUNC_EQUAL) ? VK_COMPARE_OP_EQUAL : VK_COMPARE_OP_LESS_OR_EQUAL;
depth_stencil_state.depthBoundsTestEnable = VK_FALSE;
depth_stencil_state.stencilTestEnable = VK_FALSE;
depth_stencil_state.front = {};
depth_stencil_state.back = {};
depth_stencil_state.stencilTestEnable = (def.shadow_phase != Vk_Shadow_Phase::disabled) ? VK_TRUE : VK_FALSE;
if (def.shadow_phase == Vk_Shadow_Phase::shadow_edges_rendering) {
depth_stencil_state.front.failOp = VK_STENCIL_OP_KEEP;
depth_stencil_state.front.passOp = (def.face_culling == CT_FRONT_SIDED) ? VK_STENCIL_OP_INCREMENT_AND_CLAMP : VK_STENCIL_OP_DECREMENT_AND_CLAMP;
depth_stencil_state.front.depthFailOp = VK_STENCIL_OP_KEEP;
depth_stencil_state.front.compareOp = VK_COMPARE_OP_ALWAYS;
depth_stencil_state.front.compareMask = 255;
depth_stencil_state.front.writeMask = 255;
depth_stencil_state.front.reference = 0;
depth_stencil_state.back = depth_stencil_state.front;
} else if (def.shadow_phase == Vk_Shadow_Phase::fullscreen_quad_rendering) {
depth_stencil_state.front.failOp = VK_STENCIL_OP_KEEP;
depth_stencil_state.front.passOp = VK_STENCIL_OP_KEEP;
depth_stencil_state.front.depthFailOp = VK_STENCIL_OP_KEEP;
depth_stencil_state.front.compareOp = VK_COMPARE_OP_NOT_EQUAL;
depth_stencil_state.front.compareMask = 255;
depth_stencil_state.front.writeMask = 255;
depth_stencil_state.front.reference = 0;
depth_stencil_state.back = depth_stencil_state.front;
} else {
depth_stencil_state.front = {};
depth_stencil_state.back = {};
}
depth_stencil_state.minDepthBounds = 0.0;
depth_stencil_state.maxDepthBounds = 0.0;
VkPipelineColorBlendAttachmentState attachment_blend_state = {};
attachment_blend_state.blendEnable = (def.state_bits & (GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS)) ? VK_TRUE : VK_FALSE;
attachment_blend_state.colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;
if (def.shadow_phase == Vk_Shadow_Phase::shadow_edges_rendering)
attachment_blend_state.colorWriteMask = 0;
else
attachment_blend_state.colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;
if (attachment_blend_state.blendEnable) {
switch (def.state_bits & GLS_SRCBLEND_BITS) {
@@ -1813,7 +1884,8 @@ VkPipeline vk_find_pipeline(const Vk_Pipeline_Def& def) {
cur_def.face_culling == def.face_culling &&
cur_def.polygon_offset == def.polygon_offset &&
cur_def.clipping_plane == def.clipping_plane &&
cur_def.mirror == def.mirror)
cur_def.mirror == def.mirror &&
cur_def.shadow_phase == def.shadow_phase)
{
return vk_resources.pipelines[i];
}