diff --git a/ext/native/thin3d/thin3d.h b/ext/native/thin3d/thin3d.h
index f78dbf8f87..395687f433 100644
--- a/ext/native/thin3d/thin3d.h
+++ b/ext/native/thin3d/thin3d.h
@@ -301,6 +301,8 @@ enum class Event {
 	PRESENTED,
 };
 
+constexpr uint32_t MAX_TEXTURE_SLOTS = 2;
+
 struct FramebufferDesc {
 	int width;
 	int height;
@@ -610,7 +612,7 @@ public:
 	// Binding a zero render target means binding the backbuffer.
 	virtual void BindFramebufferAsRenderTarget(Framebuffer *fbo, const RenderPassInfo &rp, const char *tag) = 0;
 
-	// color must be 0, for now.
+	// binding must be < MAX_TEXTURE_SLOTS (0, 1 are okay if it's 2).
 	virtual void BindFramebufferAsTexture(Framebuffer *fbo, int binding, FBChannel channelBit, int attachment) = 0;
 
 	// deprecated
diff --git a/ext/native/thin3d/thin3d_gl.cpp b/ext/native/thin3d/thin3d_gl.cpp
index 47d54cd354..6f697b251f 100644
--- a/ext/native/thin3d/thin3d_gl.cpp
+++ b/ext/native/thin3d/thin3d_gl.cpp
@@ -383,8 +383,8 @@ public:
 	void GetFramebufferDimensions(Framebuffer *fbo, int *w, int *h) override;
 
 	void BindSamplerStates(int start, int count, SamplerState **states) override {
-		if (boundSamplers_.size() < (size_t)(start + count)) {
-			boundSamplers_.resize(start + count);
+		if (start + count >= MAX_TEXTURE_SLOTS) {
+			return;
 		}
 		for (int i = 0; i < count; i++) {
 			int index = i + start;
@@ -488,9 +488,8 @@ private:
 
 	GLRenderManager renderManager_;
 
-	std::vector<OpenGLSamplerState *> boundSamplers_;
-	OpenGLTexture *boundTextures_[8]{};
-	int maxTextures_ = 0;
+	OpenGLSamplerState *boundSamplers_[MAX_TEXTURE_SLOTS]{};
+	OpenGLTexture *boundTextures_[MAX_TEXTURE_SLOTS]{};
 	DeviceCaps caps_{};
 
 	// Bound state
@@ -604,7 +603,6 @@ OpenGLContext::~OpenGLContext() {
 	for (int i = 0; i < GLRenderManager::MAX_INFLIGHT_FRAMES; i++) {
 		renderManager_.DeletePushBuffer(frameData_[i].push);
 	}
-	boundSamplers_.clear();
 }
 
 void OpenGLContext::BeginFrame() {
@@ -998,7 +996,9 @@ Pipeline *OpenGLContext::CreateGraphicsPipeline(const PipelineDesc &desc) {
 }
 
 void OpenGLContext::BindTextures(int start, int count, Texture **textures) {
-	maxTextures_ = std::max(maxTextures_, start + count);
+	if (start + count >= MAX_TEXTURE_SLOTS) {
+		return;
+	}
 	for (int i = start; i < start + count; i++) {
 		OpenGLTexture *glTex = static_cast<OpenGLTexture *>(textures[i - start]);
 		if (!glTex) {
@@ -1012,25 +1012,24 @@ void OpenGLContext::BindTextures(int start, int count, Texture **textures) {
 }
 
 void OpenGLContext::ApplySamplers() {
-	for (int i = 0; i < maxTextures_; i++) {
-		if ((int)boundSamplers_.size() > i && boundSamplers_[i]) {
-			const OpenGLSamplerState *samp = boundSamplers_[i];
-			const OpenGLTexture *tex = boundTextures_[i];
-			if (!tex)
-				continue;
-			GLenum wrapS;
-			GLenum wrapT;
-			if (tex->CanWrap()) {
-				wrapS = samp->wrapU;
-				wrapT = samp->wrapV;
-			} else {
-				wrapS = GL_CLAMP_TO_EDGE;
-				wrapT = GL_CLAMP_TO_EDGE;
-			}
-			GLenum magFilt = samp->magFilt;
-			GLenum minFilt = tex->HasMips() ? samp->mipMinFilt : samp->minFilt;
-			renderManager_.SetTextureSampler(i, wrapS, wrapT, magFilt, minFilt, 0.0f);
+	for (int i = 0; i < MAX_TEXTURE_SLOTS; i++) {
+		const OpenGLSamplerState *samp = boundSamplers_[i];
+		const OpenGLTexture *tex = boundTextures_[i];
+		if (!samp || !tex) {
+			continue;
 		}
+		GLenum wrapS;
+		GLenum wrapT;
+		if (tex->CanWrap()) {
+			wrapS = samp->wrapU;
+			wrapT = samp->wrapV;
+		} else {
+			wrapS = GL_CLAMP_TO_EDGE;
+			wrapT = GL_CLAMP_TO_EDGE;
+		}
+		GLenum magFilt = samp->magFilt;
+		GLenum minFilt = tex->HasMips() ? samp->mipMinFilt : samp->minFilt;
+		renderManager_.SetTextureSampler(i, wrapS, wrapT, magFilt, minFilt, 0.0f);
 	}
 }
 
@@ -1132,7 +1131,6 @@ void OpenGLContext::DrawUP(const void *vdata, int vertexCount) {
 	size_t offset = frameData.push->Push(vdata, dataSize, &buf);
 
 	ApplySamplers();
-
 	renderManager_.BindVertexBuffer(curPipeline_->inputLayout->inputLayout_, buf, offset);
 	renderManager_.Draw(curPipeline_->prim, 0, vertexCount);
 }